Pocket-knife.



D. A. MICKLESON,

POCKET KNIFE.

APPLICATION FILED 1330.21, 1912.

Patented June 2, 1914.

D- Jiflickleson wi lmeooeo COLUMBIA PLANOGRAPM co.. WASHINGTON. n, :4

DON A. MICKLESON, 0]? RYAN, CALIFORNIA.

POCKET-KNIFE.

Specification of Letters Patent.

Patented June 2, 1914.

Application filed December 21, 1912. Serial No. 737,935.

My invent-ion relates to improvements in pocket knives, and more particularly to an,

improved blade for use in such knives, said improved blade being particularly designed and adapted for use in crlmping, corrugating, or fluting detonating caps-in attaching the latter to fuses used in connection with the detonating of high explosives in blastr The improved blade may be found useful for similar or analogous purposes in other connections.

With the above mentioned and other ends in view, the invention consists in the ,novel construction, arrangement, and combination of parts, hereinafter described, illustrated insome of'its embodiments inthe accompanying drawings,and particularly pointed out in the appended claims.

Referring to the drawings, forming a part of this specification, Figure-'1, is a side elevation of apocket knife provided with an improved blade in its open posit-ion. Fig. 2, a similar view of a modified form of blade detached. Fig. 3, an enlarged cross sectional view taken on line 33 of Fig. 1; Fig. 4, an enlarged longitudinal sectional view taken on line 4-4 of Fig. 2. Fig. 5, a view of a detonating cap and fuse showing the manner in which the cap may be'fluted or longitudinally grooved with the improved blade Or tool. Fig. 6, a similar view showing circumferentially extending grooves or corrugations formed in the cap by means of the improved blade or tool.

Similar numerals of reference designate like parts throughout all the figures of the drawings.

The improved knife blade 1, may be pivotally mounted and secured in any suitable and convenient form of knife handle or body 2, as illustrated in Fig. 1, of the drawings, and the knife blade 1, is provided with a toothed recess or irregular shaped notch 3, extending from one edge of the blade, and

' a similarly recessed movable member or plate 4, suitably by the blade 1.

The toothed recess or opening 4 of the mounted on and carried movable member 4, is. adapted to register wlth the toothed recess 3, of the blade 1, and to form a coiiperating jaw for crimping, corrugating, or fiuting the detonating cap 5, upon the fuse 6, and fastening or clampng the cap 5, upon the fuse 6, as illustrated 1n Figs. 5 and 6 of the drawings.

While I have shown a pair of teeth 3", and 4 in the recesses 3 and 4 which are adapted to form the longitudinally extending grooves 52 in the detonating cap on opposite sides of the latter as indicated in Fig. 5, of the drawings, it will, of course, be obvious, that the number of such teeth and the fOrm and arrangement of the same may be varied as desired.

As a convenient method of movab'ly mounting and carrying the movable member 4, the latter may be slidably mounted transversely of the knife blade 1, at the base portion thereof by means of an inset slide or guide-way 1 intersecting or communicating with the recess or notch 3, as illustrated in Figs. 1 and 2 of the drawings, and in the form shown in Fig. 1, the transversely movable member is retained by means of overhanging guide lugs 1", while in the form shown in Fig. 2, the movable plate is provided with beveled sides fitted in correspondingly beveled or undercut sides 1, of the slide-way as shown most clearly in the enlarged longitudinal sectional view shownin Fig. 4, of the drawings.

The movable member 4, shown in Figs. 1, 2, 3, and 4, is preferably provided with a base stop in the form of a flange, as shown, said base stop being adapted to abut against the base portion of the blade when the movable member 4, is closed.

From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of my invention will be readily understood.

Having thus described some of the embodiments of my invention, what'I claim and desire to secure by Letters Patent is,

1. In a pocket knife, a pivoted blade provided with a toothed recess near its base and an intersecting transversely extending under-cut slide-way, and a slide plate mounted a for transverse movement in the latter and I provided with a similarly toothed opening and a stop in cooperative relation to said toothed recess and blade, respectively.

2. In a pocket knife, a pivoted blade provided with a toothed recess and an intersectmg slide-way, and a transversely movable member mounted in the latter and having a cooperating base stop and a similarly toothed recess adapted to register with said first-mentioned recess, the teeth in said recesses registering with each other.

3. In a pocket knife, a pivoted blade provided at its base with a toothed recess and an intersecting slideay having under-cut :0 sides, and a transversely movable member Copies of this patent may beobtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. r 

